Lewis c



L. C. ENGLAND.

. Evaporating Pan.

v Patented May 28, 1867.

Witnesses= AM PHUTO'LITHQCDJLY, (OSBURNE'S PROCESS.)

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TO, ALL WHOM IT MAY CONCERN:

Be it known that I, LEWIS O. ENGLAND, of the city and county of Philadelphia, in the State of Pennsylvaniu, have invented a new and useful Improvement in Evaporator, and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, part of this specification, (similar letters referring to similar parts,) and in which I Figure 1 is a perspective view of my improved evaporator.

Figure 2, a longitudinal elevation of the same.

Figure 3, a cross-section of the same.

Figure 4, a view of part of the stirrer.

The nature of my invention consists in constructing an cvaporaotr of wood, with a second or ,false bottom of copper or other suitable metal, and providing it with a stirrer of peculiar construction, as hereinafter described, so that the operation of evaporating will be easy, rapid, and attended with no danger of the juice or liquid setting at the bottom,whichQa-lways retards the evaporation. I

To enable others skilled in the art to make and use my invention, I will'proceed to describe its construction and operation. I p

I construct my emporator of wood, in the shape 13 P B P, of an oblong box, which I provide with a false bottom, at 0 cl 0, made of thin sheets of copper or any other suitable metal, secured in its proper place by means of nails, tacks, screws, Etc. The false bottom do (Z 0, thus described, is placed so as to keep between itself and bottom 01 cl a suilicient space to admit of the introduction of steam, either exhaust or direct, or both, from a steam engine. The space L, between false bottom (Z c and bottom d d, is partitioned lengthwiseby two or more wooden partitions K, through which apertures 0, have been out, so that, when the steam is admitted in space L through steam-cock N, it will have to intricate itself from partition to partition, to and fro through apertures O until, whencooling off and condensing, it will find its egress through cook or discharge pipe 1. and thence be taken to any suitable place, this partitioning system being to the effect to press the steam in smaller spaces at one time, thus keeping'it more compact, and capable of a more regular, steady heat.

My evaporator thus disposed I provide itwith a stirrer, which might be termed a rocking-shaft, and which is made asfollows: It is composed of a shaft, L L, to which are attached metallic or wooden teeth D D, in sufiicient number to fill up the whole inside length of the evaporator, and set apart from each other more or less, so as to suit convenience as to the kind of liquid, juice, extract, &-c., to be stirred with it, the length of teeth being such as to reach near the false bottomwithout touching it. Thus prepared the stirrer is placed in the evaporator so as to rest lengthwise on journals 0", set on the middle line of the evaporator, two of said journals being fixed, one on each end wall of the evaporatorpthe other or middle one resting on a cross-bar or beam, placed, to that effect, crosswise in D, fig. 1. A metallic upright, U P, is set upright in the middle top of shaft L L, and which will allow of a handle of anysuitable length and shape, and with which the rocking movement, as shown by red lines in fig. 3, is to be imparted to the stirrer. The whole evaporator rests on a frame, 0 0, itself set on frame 0 o, the half-end part of which tapers down to one-third, or about, of its thickness. Hinges or their equivalent secure frame 0 0 to frame 0' o, as in y; and, the whole combined as above described, if one acts on crank-screw S S G one will easily change the level of thewhole evaporator, and allow, atwill, a more or less rapid egress of liquid through spout N. I

The great difiiculty heretofore experienced in obtaining sugar from sorghum is to make the juice granulatc. Molasses is easily obtained from it, and many are those who think that sugar cannot be got from sorghum. The continual and regular brisk motion that can be given to the juice by means of my stirrcrwill prevent the sirup from settling down into a solid mass, and will break the fibre up short into separate grains. Again, extracts from barks cannot be well and easily evaporated, but only when smoothly stirred. The motion given to my stirrer is so easy and regular that there will be no ditliculty in stirring softly and steadily, and in obtaining a prompt success.

Having thus described my invention, what I claim as my invention, and desire to secure by Letters Patent of the United States, is-

1. Stirrer composed of main shaft L L, teeth D D, upright U P, combined with evaporator B P by means of journals 0, capable of a. rocking motion, constructed substantially as described.

2. The "combination of frame 0 0, tapering frame 0"0, and crank-ecrew S S C, working together in the manner and for the purpose above described.

3. "Box B P, false metallic bottom cl 0 (Z 0, frames 0 0 ahd 0 o, crank-screw S S C, and stirrer L L, all combined mrclwerking together in the manner above described and for the purpose set forth.

LEWIS C. ENGLAND.

Witnesses;

R. M. HARTLEY, C. D. COLLADAY- 

